INDUSTRIAL

www.mandals .com

IS A SPECIAL DESIGNED THERMOPLASTIC COVERED HOSE

DEVELOPED FOR REHABILITATION OF INDUSTRIAL WATER MAINS AS

FOR INSTANCE COOLING WATER-, FIRE WATER MAINS E TC.

The Hose can be delivered in diameter range suitable for 4” (DN100) to 12” (DN300) nominal pipe diameter. The hose is packed and delivered in a “U-shape”, using tape wrapped around it. Prior to installation a regular cleaning procedure is required of the host pipe and condition controlled by CCTV etc. afterwards.

The hose is pulled through the host pipe by using a wire winch e.g., and can be installed in water mains having bends up to at least 30° (R/D ≥5) . No steaming is required to inflate the hose afterwards. Just by recoupling and setting the hose under minimum 1 bar pressure, it opens up and expands towards the inner pipe wall.

Mandals Rehab (Industrial) is a semi-structural, stand-alone hose that will ensure continual water supply even if the host pipe should break. It consists of a thermoplastic polyether based polyurethane (TPU) with excellent wear & tear properties, outstanding hydrolysis resistance and resistance against microbiological attack. Operational pH range is 4-9 . The “extrusion through the weave” production method gives excellent bonding between cover and lining as well as firmly encapsulating the circular woven polyester reinforcement

Service Life Time will depend on proper and correct installation into the host pipe, as well as operating temperature and chemical reactivity of the water based fluid transferred. Accelerated aging (hydrolysis) tests performed by the TPU supplier indicate more than 50 years time span to 50% Tensile Strength reduction at 23℃C (Arrhenius diagram). Note that these results are based on single tests, in pure water and must be seen as indicative only.

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REHAB

MANDALS REHAB

TECHNICAL DATA

Contact sales@mandals.com(47) 38 27 24 00Nordre Banegate 26, 4515 Mandal, Norway

MANDALS REHAB - INDUSTRIAL

inch mm inch mm inch mm lbs/ft kg/m psi bar psi bar lbsx 1000 tons ds kN/m

3 80 2.83 +0.08 72,0 +2,0 0.12 3,0 0.54 0,8 700 48 275 19 14 6 > 250 > 3

4 100 3.50 +0.10 89,0 +2,5 0.13 3,2 0.94 1,4 650 45 260 18 22 10 > 250 > 3

5 125 4.45 +0.12 113,0 + 3,0 0.13 3,4 1.14 1,7 650 45 260 18 33 15 > 250 > 4

6 150 5.35 +0.12 136,0 +3,0 0.14 3,6 1.34 2,0 650 45 260 18 35 16 > 250 > 5

8 200 7.20 +0.12 183,0 +3,0 0.16 4,0 1.88 2,8 610 42 245 17 66 30 > 250 > 5

10 250 9.00 +0.16 228,0 + 4,0 0.17 4,2 2.75 4,1 520 36 210 14 81 37 > 200 > 5

12 300 10.65 +0.20 271,0 +5,0 0.18 4,6 3.08 4,6 435 30 175 12 98 45 > 150 > 5

Weight

Polymer Adhesion Level to Weave

(6)

Max. Working Pressure

(3)

Tensile Strength(4)

AbrasionResistance

(5)

Burst Pressure (ISO 1402)

Wall Thickness

Hose intDiameter

Nominal Pipe Inner Diameter

Issue date: 06.03. 2019

(1) Will depend on Operating Pressure and Hose Diameter (2) Depending on Operating Temperature. Contact Fenner Mandals for further advice (3) A Safety Factor of 2,5 is applied(4) Theoretical calculated Tensile Strength. Efficiency factor of 0,8 is applied(5) In-house Test procedure ( Double strokes –ds)(6) Test procedure: NS-EN ISO 8033 (increased requirements)

NOTES

SECTION LENGTHS WILL DEPEND ON:- Hose Dim: Large dim = > Shorter lengths. Secondly, higher friction and drum space- Number of bends: More bend => Higher friction => Higher traction - Bend angle and R/D ratio: Sharp bends => Higher friction and greater risk of damage to the hose during retraction. Can be dampened with good lubrication (silicone oil / cooking oil etc) on hose. High R/D ratio means less curvature and facilitates retraction, but also less “buckling” or folding of the hose at the smallest curvature radius